{"id":114268,"date":"2024-03-12T12:25:57","date_gmt":"2024-03-12T10:25:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-android-14-ekspluatiruemaya-cherez-bluetooth-le"},"modified":"2024-03-12T12:25:57","modified_gmt":"2024-03-12T10:25:57","slug":"uyazvimost-v-android-14-ekspluatiruemaya-cherez-bluetooth-le","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimost-v-android-14-ekspluatiruemaya-cherez-bluetooth-le","title":{"rendered":"Luka w Androidzie 14, eksploatowana przez Bluetooth LE","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Deweloperzy projektu GrapheneOS, rozwijaj\u0105cego zabezpieczon\u0105 wersj\u0119 bazy kodowej AOSP (Android Open Source Project), zidentyfikowali podatno\u015b\u0107 w stosie Bluetooth platformy Android 14, kt\u00f3ra potencjalnie mo\u017ce prowadzi\u0107 do zdalnego wykonania kodu. Problem wynika z odwo\u0142ania do ju\u017c zwolnionego obszaru pami\u0119ci (use-after-free) w kodzie obs\u0142ugi d\u017awi\u0119ku przesy\u0142anego przez Bluetooth LE. <\/p>\n

Podatno\u015b\u0107 zosta\u0142a zidentyfikowana dzi\u0119ki integracji dodatkowej ochrony w wywo\u0142aniu hardened_malloc, wykorzystuj\u0105cej rozszerzenie ARMv8.5 MTE (MemTag, Memory Tagging Extension), kt\u00f3re pozwala na przypisywanie tag\u00f3w do ka\u017cdej operacji przydzielania pami\u0119ci oraz organizowanie weryfikacji poprawno\u015bci korzystania z wska\u017anik\u00f3w w celu blokowania wykorzystywania podatno\u015bci spowodowanych odwo\u0142aniami do ju\u017c zwolnionych blok\u00f3w pami\u0119ci, przepe\u0142nieniami bufora, odwo\u0142aniami przed inicjalizacj\u0105 oraz u\u017cywaniem poza aktualnym kontekstem. <\/p>\n

B\u0142\u0105d objawia si\u0119 od aktualizacji Android 14 QPR2 (Quarterly Platform Release), opublikowanej na pocz\u0105tku marca. W g\u0142\u00f3wnej bazie kodowej platformy Android 14 mechanizm MTE dost\u0119pny jest jako opcja i na razie nie jest stosowany domy\u015blnie, ale w GrapheneOS zosta\u0142 ju\u017c wdro\u017cony dla dodatkowej ochrony, co umo\u017cliwi\u0142o zdiagnozowanie b\u0142\u0119du po aktualizacji do Android 14 QPR2. B\u0142\u0105d prowadzi\u0142 do awarii przy u\u017cywaniu s\u0142uchawek Bluetooth Samsung Galaxy Buds2 Pro z oprogramowaniem, w kt\u00f3rym w\u0142\u0105czona by\u0142a ochrona oparta na MTE. Analiza incydentu wykaza\u0142a, \u017ce problem dotyczy odwo\u0142ania do ju\u017c zwolnionej pami\u0119ci w obs\u0142udze Bluetooth LE, a nie awarii z powodu integracji MTE. <\/p>\n

Wra\u017cliwo\u015b\u0107 zosta\u0142a usuni\u0119ta w wersji GrapheneOS 2024030900 i dotyczy modeli smartfon\u00f3w, w kt\u00f3rych nie w\u0142\u0105czono dodatkowej ochrony sprz\u0119towej opartej na rozszerzeniu MTE (MTE jest na razie dost\u0119pne tylko dla urz\u0105dze\u0144 Pixel 8 i Pixel 8 Pro). Wra\u017cliwo\u015b\u0107 wyst\u0119puje na smartfonach Google Pixel 8 z systemem Android 14 QPR2. W Androidzie dla smartfon\u00f3w z serii Pixel 8 tryb MTE mo\u017cna w\u0142\u0105czy\u0107 w ustawieniach dla deweloper\u00f3w (\"Ustawienia \/ System \/ Opcje dewelopera \/ Rozszerzenia oznaczania pami\u0119ci\"). W\u0142\u0105czenie MTE prowadzi do zwi\u0119kszenia zu\u017cycia pami\u0119ci o oko\u0142o 3%, ale nie obni\u017ca wydajno\u015bci.
\n
\u0179r\u00f3d\u0142o: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 GrapheneOS, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u043e\u0435 \u043e\u0442\u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u0435 \u043e\u0442 \u043a\u043e\u0434\u043e\u0432\u043e\u0439 \u0431\u0430\u0437\u044b AOSP (Android Open Source Project), \u0432\u044b\u044f\u0432\u0438\u043b\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 Bluetooth-\u0441\u0442\u0435\u043a\u0435 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Android 14, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u043c\u0443 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0435\u043c \u043a \u0443\u0436\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0451\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0430\u043c\u044f\u0442\u0438 (use-after-free) \u0432 \u043a\u043e\u0434\u0435 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0437\u0432\u0443\u043a\u0430, \u043f\u0435\u0440\u0435\u0434\u0430\u0432\u0430\u0435\u043c\u043e\u0433\u043e \u0447\u0435\u0440\u0435\u0437 Bluetooth LE. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0431\u043b\u0430\u0433\u043e\u0434\u0430\u0440\u044f \u0438\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0438\u0438 \u0432 \u0432\u044b\u0437\u043e\u0432 hardened_malloc \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0437\u0430\u0449\u0438\u0442\u044b, […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-114268","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Luka w Androidzie 14, wykorzystywana przez Bluetooth LE | ProHoster","description":"Deweloperzy projektu GrapheneOS, rozwijaj\u0105cego zabezpieczon\u0105 wersj\u0119 bazy kodowej AOSP (Android Open Source Project), zidentyfikowali podatno\u015b\u0107 w stosie Bluetooth platformy Android 14, kt\u00f3ra potencjalnie mo\u017ce prowadzi\u0107.","canonical_url":"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimost-v-android-14-ekspluatiruemaya-cherez-bluetooth-le","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"pl_PL","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 Android 14, \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u0443\u0435\u043c\u0430\u044f \u0447\u0435\u0440\u0435\u0437 Bluetooth LE | ProHoster","og:description":"\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 GrapheneOS, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u043e\u0435 \u043e\u0442\u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u0435 \u043e\u0442 \u043a\u043e\u0434\u043e\u0432\u043e\u0439 \u0431\u0430\u0437\u044b AOSP (Android Open Source Project), \u0432\u044b\u044f\u0432\u0438\u043b\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 Bluetooth-\u0441\u0442\u0435\u043a\u0435 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Android 14, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0436\u0435\u0442 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